how and why? keyed crank
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TECH Apprentice
Joined: Jul 2002
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From: MS.
how and why? keyed crank How and why would you key the crank on an LS1? It seems the motor I bought has a key on the snout. (not the oil pump key! another one.) Can I just pop this key out and put my pully on since it is internally balanced or will this hurt it?
TECH Fanatic
Joined: Nov 2001
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From: SW Florida
Re: how and why? keyed crank The LS1 crank is not keyed where the balancer/pulley attaches. The balancer is pressed on. Thats ok for normal use, however, the folks that have a supercharger have found that the balancer/pulley will sometimes rotate on the crank end if the crank is not keyed.
If you not running a SC, it's not necessary to cut a keyway in the crank and balancer.
Ron,
If you not running a SC, it's not necessary to cut a keyway in the crank and balancer.
Ron,
TECH Fanatic
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Re: how and why? keyed crank The only key on your crank is the key that attaches the crank timing gear.
If you have a keyway that extends all the way out to the balancer, someone has modified it.
If you have a keyway that extends all the way out to the balancer, someone has modified it.
Re: how and why? keyed crank Whoever had the motor before you must have had a blower on it. Just pull the pulley the way you normally would, then put your pulley on without the key if you're not going to supercharge it.
